<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <title>Vue 测试实例 - 菜鸟教程(runoob.com)</title>
  <script src="https://cdn.staticfile.org/vue/2.2.2/vue.min.js"></script>
  <style>
/* 可以设置不同的进入和离开动画 */
/* 设置持续时间和动画函数 */
.fade-enter-active, .fade-leave-active {
    transition: opacity 2s
}
.fade-enter, .fade-leave-to /* .fade-leave-active, 2.1.8 版本以下 */ {
    opacity: 0
}
</style>
</head>

<body>
  <div id="databinding">
    <button v-on:click="show = !show">点我</button>
    <transition name="fade">
      <p v-show="show" v-bind:style="styleobj">动画实例</p>
    </transition>
  </div>
  <script type="text/javascript">
    var vm = new Vue({
      el: '#databinding',
      data: {
        show: true,
        styleobj: {
          fontSize: '30px',
          color: 'red'
        }
      },
      methods: {
      }
    });
  </script>
</body>

</html>